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・ Washburn, Clark County, Wisconsin
・ Washburn, Illinois
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Washdown
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Washdown : ウィキペディア英語版
Washdown

Washdown (also wash down) is the process of high-pressure cleaning with water and/or chemicals in industries such as food and beverage and pharmaceuticals. A washdown is usually a manual operation and is designed to kill bacteria and other micro-organisms. Automatic cleaning of industrial equipment is often carried out by clean-in-place (CIP) and/or steam-in-place (SIP) operations. CIP systems often make use of programmable controllers and SCADA software.
Washdown is the process of using a stream of water to clean a flat or nearly flat outside surface. Typically the area cleaned is a large expanse of concrete or asphalt. The area is cleaned of dirt and debris by the use of the force and dissolving power of stream of water as projected from a hose. Generally, one person holds and aims the hose, though if the hose is longer than 300 feet then another person may be required to help move the hose itself. Water is typically squirted from the hose at a pressure of 300 psi. The hose itself can vary in length from 75 to 425 feet. Though typically the hose when used by a single person is 300 feet long. The hose itself carries water from a water main which attaches to the hose through what is called a “stinger“. The stinger screws into the water main pipe and is held there.
Also, the stinger as it is pushed down into the water supply pipe opens a seal which releases the water into the hose. At the other end of the hose a nozzle regulates the flow of water and allows for a large fanned-out spray, as well as a more concentrated stream termed a needlepoint.


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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